Improved sash-jbalahce



NPETERS. PHOTO-LITHOGRFHER. WASHINGTON, D C

JOHN DOUGLAS HOPKINS, OF LONDON, ENGLAND.

Letters Patent No.V 97,400, dated .No/runter 30, 1869; patented 'Milug/Iam?, A'otember 20, 1808.

M, am.. i. l

IMPROVED- SASH-QALNCE.

The Schedule referred to in these Letters Patent and making part of the sama.

To all whomJ it may concern.-

Be it known that I, Jeux Do'UcnAs Hormns, of Loudon, England, have invented or discovered certain new and useful Improvements in Apparatus for Opening and Closing Windaw-Sashes; and I do hereby declare that the following is a full, true, and exact description thereof, reference being had to the accompanying drawings, and to the letters and ligures marked thereon; that. is to say;- v

'lhe present modes of 'opening and closing window sashes are inconvenient, nore especially as regards the upper sash.

My invention consists in a device for opening and closing window-sashes, wherein weights are connected to the winding-oord, in order. to relieve the drums of the weight ofthe sashes.

The accompanying drawings represent the manner in which my invention may be carried into Figure l is au elevation, and

Figure 2, aside view of a sash-frame, with a pair ol sashes, and having the gearing, or raising and lowering-apparatus, attached to the sill 'ol' the sash-frame.

' Figure 3 is a plan of the geariu. The arrangement here shown is intended for a pairof sashes of moderate size, glazed with plate-glass.

a is the lower, and b, the upper sash.

ce are the suspending-cords ofthe lower sash.

'lhey pass over pulleys d, fixed at the upper 'part of the sash-frame, and are attached to the sash and to weights p, in the usual manner.

They are `also attached to the vlower end oi' the weights, and then descend to guide-rollers c e, under which they are passed to drum-wheels finto which their ends are connected.

These drum-wheelsf f each carry a spur-wheel, y, the two wheels g gearing into each other, so as to rotate simultaneously, butin opposite directions.

One of the wheels, g, is geared into by a pinion, h, on a spindle, l, formed to receive a winch or cranked handle, m.

When it is required to open the lower sash, the handle 'm is applied to the spindle l, and then rotated.

The rotar f motion is transmitted, by the gearing 7l g, to the drum-wheels f f, which are thus caused to rotate simultaneously, but in opposite directions, so asto windup the cords c c and raise the sash.

To prevent the sash being nioved from the outside, nr descending by its own weight when open, I lita ratchet-wheel, n, ou the spindle I, this wheel being provided lwith-a pawl or catch, o, arranged so as to be lifted by the handle m, when the latter is applied to the spindle l.

The gearing for the upper sash b is similar to that for the lower sash, as just explained, c c being the suspending-cords, fj" the drum-wheels, and g' h the gearing.`

q q are fasteners applied to the lower sash, as shown, in lieu of the fasteners usually applied to the meetingrails.

4Figure 4 representeren arrangement of gearing suit-| able for a pair of large sashes glazed with plate-glass.

This arrangement diers. from that previously de scribed, in the addition of the intermediate wheels and pinions t' t" and k k.

Figure 5 represents an arrangement suit-able ier small sashes glazed with crown-glass or other thin glass.

As less power is required to lift these sashes, the cranked handle is applied directly to the axle of one of the druinwheels,f.

Figures 6 and 7 represent the manner in which my apparatus may be applied to open and close the window-sash in a railway or other carriage-door.

ff are the drum-wheels, geared together by spurwheels q g, as in the arrangement previously described.

One ofthe spur-wheels, y, is provided with a bandwheel, or pulley, lr, around which a cord, s, from another baud-wheel, or pulley, t, is passed.

On the axle ofthe band-wheel t is a spur-wheel, u, geared into by a pinion, yr. l.

'lhe drum-wheels f are driven hy rotating the pnlion c, by means of a handle, an, or otherwise.

lu some cases, I dispense with the wheel n. and pin ion r, and apply'the handle to the axle ofthe wheel t.

Thearrangement represented in rigs. b and 7 may also be applied to windows used in some shop-fronts.

1t will be seen that the sashes are balanced, or nearly balanced, whereby there is no strain ou the windingdrums, so that the sashes are readily raised and lowered. i

I do not claim the gearing, with the cord connected thereto; but

That I do claim, ise- The combination of the balanced sasbes c b, the

whirling-cords, and the winding-drums with the weights p p, substantially as and for the purpose described.

In witness whereof, I, the said JOHN DOUGLAS HOPKINS, have hereunto set my hand, this 4th day of May, 1869.

J. I). HOPKINS.

` Witnesses:

Geenen HOPKINS,

` 30 Pwr-limitent Street, llfestmnster. J.' C. NEWBURN,

172 Fleet Street, London. 

